Evaluation of protein's interaction and the regulatory network of some drought-responsive genes in Canola under drought and re-watering conditions

Maryam Pasandideh Arjmand; Habibollah Samizadeh Lahiji; Mohammad Mohsenzadeh Golfazani; Mohammad Hassan Biglouei

doi:10.1007/s12298-023-01345-1

Evaluation of protein's interaction and the regulatory network of some drought-responsive genes in Canola under drought and re-watering conditions

Physiol Mol Biol Plants. 2023 Aug;29(8):1085-1102. doi: 10.1007/s12298-023-01345-1. Epub 2023 Sep 1.

Authors

Maryam Pasandideh Arjmand¹, Habibollah Samizadeh Lahiji¹, Mohammad Mohsenzadeh Golfazani¹, Mohammad Hassan Biglouei²

Affiliations

¹ Department of Plant Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
² Department of Water Engineering, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.

PMID: 37829706
PMCID: PMC10564702 (available on 2024-08-01)
DOI: 10.1007/s12298-023-01345-1

Abstract

Drought stress is one of the most important environmental stresses that severely limits the growth and yield of Canola. The re-watering can compensate for the damage caused by drought stress. Investigation of protein's interaction of genes involved in important drought-responsive pathways and their regulatory network by microRNAs (miRNAs) under drought and re-watering conditions are helpful approaches to discovering drought-stress tolerance and recovery mechanisms. In this study, the protein's interaction and functional enrichment analyses of glycolysis, pentose phosphate, glyoxylate cycle, fatty acid biosynthesis, heat shock factor main genes, and the regulatory network of key genes by miRNAs were investigated by in silico analysis. Then, the relative expression of key genes and their related miRNAs were investigated in tolerant and susceptible genotypes of Canola under drought and re-watering conditions by Real-time PCR technique. The bna-miR156b/c/g, bna-miR395d/e/f, bna-miR396a, and all the studied key genes except HSFA1E and PK showed changes in expression levels in one or both genotypes after re-watering. The PPC1 and HSFB2B expression decreased, whereas the MLS and CAC3 expression increased in both genotypes under re-watering treatment after drought stress. It could cause the regulation of oxaloacetate production, the increase of the glyoxylate cycle, lipid biosynthesis, and the reduction of the negative regulation of HSFs under re-watering conditions. It seems that PPC1, G6PD2, MLS, CAC3, and HSFB2B were involved in the recovery mechanisms after drought stress of Canola. They were regulated by drought-responsive miRNAs to respond appropriately to drought stress. Therefore, regulating these genes could be important in plant recovery mechanisms.

Supplementary information: The online version contains supplementary material available at 10.1007/s12298-023-01345-1.

Keywords: Fatty acid biosynthesis; Gene expression; Glyoxylate cycle; MiRNAs; STRING.

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